ΛKΣ (Lamba Kappa Sigma) headquartered in Muskego, Wisconsin is an international pharmacy fraternity founded in 1913 by Ethel J. Heath and eight other female students at Massachusetts College of Pharmacy. It was created to promote the profession of pharmacy among women and advance women within the profession by developing its members as individuals and leaders through the support of fellow members while encouraging a high standard of professional ethics and scholarship. Although LKS was created for the advancement of women, it is a coed organization on some college campuses.